exam paper vs worksheet

exam paper

noun
  • A piece of paper on which the questions or tasks of an examination are written. 

  • A piece of paper on which examination candidates are expected to write their answers. 

worksheet

noun
  • A sheet of paper or computerized document on which problems are worked out or solved and answers recorded. 

verb
  • To teach or assess by means of worksheets. 

How often have the words exam paper and worksheet occurred in a corpus of books? (source: Google Ngram Viewer )